Tue, 05 Oct 2010 11:34:43 -0700
6988836: A new JavacElements is created for each round of annotation processing
Reviewed-by: darcy
1 /*
2 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
24 /*
25 * @test
26 * @bug 6988836
27 * @summary A new JavacElements is created for each round of annotation processing
28 * @library ../../../lib
29 * @build JavacTestingAbstractProcessor TestContext
30 * @compile/process -processor TestContext -XprintRounds TestContext
31 */
33 import java.io.*;
34 import java.util.*;
35 import javax.annotation.processing.*;
36 import javax.lang.model.element.*;
37 import javax.tools.*;
38 import static javax.tools.Diagnostic.Kind.*;
40 import com.sun.source.util.Trees;
41 import com.sun.tools.javac.api.JavacTrees;
42 import com.sun.tools.javac.model.JavacElements;
43 import com.sun.tools.javac.model.JavacTypes;
44 import com.sun.tools.javac.processing.JavacProcessingEnvironment;
45 import com.sun.tools.javac.util.Context;
47 public class TestContext extends JavacTestingAbstractProcessor {
49 Trees treeUtils;
50 int round = 0;
52 @Override
53 public void init(ProcessingEnvironment pEnv) {
54 super.init(pEnv);
55 treeUtils = Trees.instance(processingEnv);
56 }
58 @Override
59 public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
60 round++;
62 JavacProcessingEnvironment jpe = (JavacProcessingEnvironment) processingEnv;
63 Context c = jpe.getContext();
64 check(c.get(JavacElements.class), eltUtils);
65 check(c.get(JavacTypes.class), typeUtils);
66 check(c.get(JavacTrees.class), treeUtils);
68 final int MAXROUNDS = 3;
69 if (round < MAXROUNDS)
70 generateSource("Gen" + round);
72 return true;
73 }
75 <T> void check(T actual, T expected) {
76 // messager.printMessage(NOTE, "expect: " + expected);
77 // messager.printMessage(NOTE, "actual: " + actual);
79 if (actual != expected) {
80 messager.printMessage(ERROR,
81 "round " + round + " unexpected value for " + expected.getClass().getName() + ": " + actual);
82 }
83 }
85 void generateSource(String name) {
86 String text = "class " + name + " { }\n";
88 try (Writer out = filer.createSourceFile(name).openWriter()) {
89 out.write(text);
90 } catch (IOException e) {
91 throw new Error(e);
92 }
93 }
95 }